Sash lock and tightener.



N o. 872,099. PATENTED NOV. 26, 1907.

' H. 0. WOLFE.

SASH LOOK AND TIGHTBNER.

APPLIOATION FILED AUG- 23.1907.

2 SHEETS-SHEET 1.

z a v;

I a mltoz a w M/ w 7 47%4//AV,

. farm d 2 k H //%7 M ///W f% a 6 X T E IIIIIEI II: II: I I L- l L I221.

eft

Ill

PATENTED NOV. 26. 1907.

H. 0. WOLFE.

SASH LOOKAND TIGHTBNER.

APPLICATION IILEDAUG. as. 1901 2 SHEETS-SHEET 2.

E m-0c u Tom UNITED STATES PATENT ()FFICE.

HERMAN O. WOLFF, OF SYRACUSE, NEW YORK.

SASH LOCK AND TIGHTENER.

Q No. 872,099.

To ZZZ whom it may concern:

Be it known that I, HERMAN O. WOLFF, a J citizen of the United States,and resident of .5 ,Syraeuse, in the county of Onondaga, in the .35State of New York, have invented new and useful Improvements in SashLocks and Tightencrs, of which the following, taken in connection withthe accom anying drawings, is a full, clear, and exact escription. o.-'10 V i This invention relates to the class oi sash locks in which adog is pivoted to the sash andengages a notch in a part of the window--i easing. And the invention consists in an jirnproved construction andcombination of i; 1=5.th e component parts oi the sash-lock which isvery etlicient and convenient in its operaj tion of locking the sash andat the same time causes the locked sash to be tightly seated on thewindow casing so as to effectively excludeair from the joint between thesash and the casing. l'nthe.aecompanying drawings, Figure 1- ,.is aninner face view of a portion of a sash equipped with my invention: Fig.1is an :f enlarged vertical section on the broken line -X-X in Fig. 1;Fig. 3 is a further enlarged horizontal section on the line -Y, Y+.- inFig. 1; Fig. t is a transverse --sectionmthe line Z-Z--in Fig. 3; andFig-. 5 is an enlarged transverse section of the stile oi the'sash takenon line -'U. 2;, X-,- represents the sash, and B- the casing which isprovided with the inner verti- ASE Ecal 'guiding-strip ---C usuallydesignated the window-stop. 'lhe.outer edge ol the said step is providedwith a vertically disposed series of notches 4041. for the purposehereinafter explained. Said notches are preferably in a bar e attachedto the 4 0 stop 'lhe edge of the stile -11 is Formed with a recess----c-- extending lengthwise ot' the stile and in the said recess isrigidly secured a vertical metal bar (I preferably L- shaped incross-section and disposed with one ol its webs flush with the edge ofthe stile l) The lower and upper end portions of the said web of the bar-(Z are each providedwithan aperture. -c and totheinuer portion ol'saidbar are pivoted t\\'odogs f and ef adapted to protrude through the:tPtti-lll'tis e 'rr and engage the notches a (I. -opposite saidapertures. 'lhedogs f are beveled toward their outer ends and bear onthe bot lonis ol t he engaged notches hen the said dogs are in positionto Specification of Letters Patent.

Application filed August 23.1907- Serial No. 389.762-

Patented Nov. 26, 1907.

I lock the sash as shown in Fig. 2 of the drawings. Said bearings of thedogs serve -to crowd the sash outward to the outer guidingstrip of thewindow-mising as shown in Fig. 3, thus forming 'thereat a tight jointbetween the sash and casing so as to ell'ectuaily exclude air from saidjoint,

--hrepresents a rod which extends vertically through the recess c in thestile of the sash and is connected at opposite ends to the two dogs----/'-f-- so as to operate them jointly. 1 preferably conneetthe lowerend of said rod to an inward extension --i-- of the lower dog f andconnect thoupper end of said rod to the central portion of the dog asshown in Fig. 2. This causes the two dogs to move in opposite directionsfrom each other. 'lhelower dog is employed to prevent the sash frombeing raised from its closed position. The upper dog -fserves to preventthe sash from dropping from its raised and open position.

The dogs are automatically thrown into their engaging position by meansof a spiral spring -j* which rests on top c. a bracket 7r attached tothe bar Z and surrounds the rod h to which is attached a collar lbearing on the upper end of the spring. For moving the dogs out of theirengaging position, a horizontal rock shaft -m is placed in the bottomrail n of the sash and fastened at its outer end to the lower dog -fandconstitutes the pivotal support of said dog as shown in Fig. 3. Theinner end of said shaft is iv- 0- which is rigidly attached to the innerface of the bottom rail of the sash. The said end of the shaft isprovided with a transverse perforation p for reception of a tongucf--t--formed on the end of a thumb lever -r which is also formed with a yoke--sshaped to embrace part of the shaft and thus compensate for theweakening of the shaft by the perforation -p and at the same time bracethe thumb lover.

The object of the described connection of the thumb lever to the shaft---m is to allow the said thumb lever to be withdrawn from the shaft andremoved from tlie sash and thus guard against the unlocking of the sashby t nauthorizml persons.

What claim as my invention is l. The combination, with the sash and thecasing provided with a vertical guide-strip engaging the inner side ofthe sash, of a dog otcd to a plate oformed on the p ate movablyconnected to the sash and bearing l on the outer edge of theguide-strip, a springpressed member automatically forcing the dog towardthe said guide-strip to engage said notches,

the latter, a rock-shaft connected to the spring-pressed member formoving the dog away from the guide-strip, and means for actuating saidrock-shaft as set forth.

2. The combination, with the sash and easing, of a vertical guide-stripprovided with a vertically disposed series of notches, a dog pivoted tothe sash and having a protruding portion adapted to engage one of thenotches and beveled to crowd the sash outwardly to bear on the casing, aspring-pressed'rod automatically forcing the dog toward the guidestrip,a rock-shaft disposed in the bottom rail of the sash for operating therod in opposition to the springto turn the dogout of engagement with thenotch, and a thumblever for actuating. said rock-shaft as set forth. y

3. The combination, with the sash and the casing provided with avertically disposed series of notches, of two dogs pivoted respectivelyto the lower and upper portions of the sash and disposed to engage theaforea rod extending vertically stile of the sash and connected throughthe to the dogs, a spring forcing said rod longitudinally in onedirection, and means for moving the rod in the opposite direction.

4. The combination, with the sash and the casing provided with avertically disposed series of notches, of a metal bar secured verticallyin the stile of the sash, dogs pivoted respectively to the lower andupper end portions of said bar, a rod extending lengthwise of said barand connected to said dogs, a bracket attached to the bar, aspiral'spring surrounding the rod and seated at'one end on the bracket,a collar attached to the rod l and bearing on the opposite end of thespring,

' apertures,

\ the other dog,

and means for moving the rod in opposition to said spring. H

5. The combin fibion, with the sash and the casing provided with avertically disposed series of notches, of a metal bar secured verticallyin the stile of the sash and provided with apertures, two dogs pivotedto the said bar and protruding through the aforesaid a rod extendinglengthwise of said bar and connected to the dogs, a bracket attached tothe bar, a spiral spri g seated on said bracket, a collar attached tothe rod and bearing on the upper en of the spring, a horizontal shaft inthe bottom rail of the sash and constituting the pivotal support of thelower dog, and a thumb-lever connected to said shaft. I

6. The combination, with the sash and the casing provided with avertically disposed series of notches, of a metal bar secured tically inthe stile of the sash and provided with apertures, two dogs connectedmovably to said bar and protruding through the apertures thereof, a rodextending lengthwise o the bar and having one end engaging an inwardextension of one dog and at the opposite end engaging the centralportion. of

a spring gitudinally in one direction, and means for moving the red inthe opposite direction.

7. The combination, with the sash am dogs for locking said sash, of' ahorizontal shaft in the rail of the sash and transmitting motion to thedogs and provided with a transverse perforation, of a thumb-lever formedwith a yoke embracing a portion ofthe shaft and with a tongue enteringthe perforation of said shaft and removable therefrom-as set forth.

HERMAN O. WOLFF. In presence of' J. J LAAss, J. E. HARWOOD.

forcing the rod lon-

